component
TCLLZ6V8TR
Public Made by Adomby adom
Tak Cheong Zener Diodes, LL-34. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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TCLLZ6V8TR
Tak Cheong · Zener Diodes · LL-34
TCLLZ6V8TR from Tak Cheong, in a LL-34. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Tak Cheong |
| Package | LL-34 |
| Category | Diodes |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener voltage tolerance (standard, nominal VZ) | VZ | -5 | 5 | % | Standard tolerance on nominal zener voltage, per Note 1 for the TCLLZ type numbers | 2 | |
| Maximum reverse current | IR | 2 | A | Max IR @ VR column for TCLLZ6V8, paired with VR = 3.5 V; unit printed as 'A' | 1 | ||
| Maximum reverse voltage | VR | 3.5 | Volts | Max VR column for TCLLZ6V8, at which Max IR applies | 1 | ||
| Maximum forward voltage | VF | 1.2 | V | IF = 200 mA, stated for all types | 2 | ||
| Power dissipation | 500 | mW | TA = 25°C unless otherwise noted | 1 | |||
| Storage temperature range | -65 | 175 | °C | Storage | 1 | ||
| Operating junction temperature | 175 | °C | Operating junction | 1 | |||
| Nominal zener voltage | VZ | 6.8 | Volts | Nominal VZ @ IZT = 5 mA | 1 | ||
| Zener test current | IZT | 5 | mA | Nominal IZT test current for TCLLZ6V8 | 1 | ||
| Zener impedance | ZZT | 20 | Ω | @ IZT = 5 mA; 60-cycle AC at rms 10% of IZT (Note 3); column not labeled Max | 1 |
CAD (KiCad official)
- Symbol:
TCLLZ6V8TR - Footprint:
Diode_SMD:D_MiniMELF - 3D model: LL-34 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Tak Cheong datasheet (5 pp, sha256
c5238b28a9543714, retrieved 2026-10-13, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# TCLLZ6V8TR
**Tak Cheong** · Zener Diodes · LL-34
TCLLZ6V8TR from Tak Cheong, in a LL-34. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Tak Cheong |
| Package | LL-34 |
| Category | Diodes |
| Pins | 2 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener voltage tolerance (standard, nominal VZ) | VZ | -5 | | 5 | % | Standard tolerance on nominal zener voltage, per Note 1 for the TCLLZ type numbers | 2 |
| Maximum reverse current | IR | | | 2 | A | Max IR @ VR column for TCLLZ6V8, paired with VR = 3.5 V; unit printed as 'A' | 1 |
| Maximum reverse voltage | VR | | | 3.5 | Volts | Max VR column for TCLLZ6V8, at which Max IR applies | 1 |
| Maximum forward voltage | VF | | | 1.2 | V | IF = 200 mA, stated for all types | 2 |
| Power dissipation | | | | 500 | mW | TA = 25°C unless otherwise noted | 1 |
| Storage temperature range | | -65 | | 175 | °C | Storage | 1 |
| Operating junction temperature | | | | 175 | °C | Operating junction | 1 |
| Nominal zener voltage | VZ | | 6.8 | | Volts | Nominal VZ @ IZT = 5 mA | 1 |
| Zener test current | IZT | | 5 | | mA | Nominal IZT test current for TCLLZ6V8 | 1 |
| Zener impedance | ZZT | | 20 | | Ω | @ IZT = 5 mA; 60-cycle AC at rms 10% of IZT (Note 3); column not labeled Max | 1 |
## CAD (KiCad official)
- Symbol: `TCLLZ6V8TR`
- Footprint: `Diode_SMD:D_MiniMELF`
- 3D model: LL-34 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Tak Cheong datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588902615757836289) (5 pp, sha256 `c5238b28a9543714`, retrieved 2026-10-13, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/tcllz6v8tr-datasheet.pdf)